| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] as a | 27 |
|
| 2 | could [adv] [verb] as a | 27 |
|
| 3 | could [adv] [vb infin] as a | 27 |
|
| 4 | could [adv] [verb] as a | 21 |
|
| 5 | could [not/n't] [verb] as a | 6 |
|
| 6 | could not [verb] as a | 6 |
|
| 7 | could only [verb] as a | 5 |
|
| 8 | could only [verb] as a | 5 |
|
